PMDF is distributed with a default Job Controller configuration that is
suitable for most sites. This default configuration defines a single
DEFAULT with a job limit of 4. The
DEFAULT queue is used by all PMDF channels which do not
specify a queue using the
queue option. (In the default
configuration, the queue
DEFAULT is actually the only
In addition, the supplied Job Controller configuration file includes channel definitions for all of the supplied and supported PMDF channels.
The Job Controller configuration file is required. If it is not present, or its contents are incorrect, the Job Controller does not start.
There is no need to modify the configuration file unless you choose to
add queues, modify queue parameters, modify channel options, or add
processing information for locally developed channels. If you do want
to make such modifications, you should not alter the Job Controller
configuration file itself since it is replaced when you upgrade PMDF
and you lose your modifications. Instead, create a
job_controller.cnf_site file in the PMDF table directory
containing your own definitions. The Job Controller configuration file
reads in this site supplied file, if it exists.